Development of Grain Conveyor Structure to Reduce Time Required for Internal Cleaning of Combine Harvester

Abstract

A grain conveyor structure was developed to reduce the time required for cleaning the inside of a combine harvester. In the developed structure, the horizontal plane parts in the grain conveyor were slanted to promote slipping of grains. Further, the cleaning ports were enlarged and located in optimized positions to enable the easy discharge of grain residue. The results of examinations conducted using a head-feeding combine harvester indicated that the time required for grain removal in grain conveyors with the developed structure was approximately half of that required with the conventional structure.